From: Bob Peterson <rpeterso@xxxxxxxxxx>
commit f0b444b349e33ae0d3dd93e25ca365482a5d17d4 upstream.
In function sweep_bh_for_rgrps, which is a helper for punch_hole,
it uses variable buf_in_tr to keep track of when it needs to commit
pending block frees on a partial delete that overflows the
transaction created for the delete. The problem is that the
variable was initialized at the start of function sweep_bh_for_rgrps
but it was never cleared, even when starting a new transaction.
This patch reinitializes the variable when the transaction is
ended, so the next transaction starts out with it cleared.
Fixes: d552a2b9b33e ("GFS2: Non-recursive delete")
Cc: stable@xxxxxxxxxxxxxxx # v4.12+
Signed-off-by: Bob Peterson <rpeterso@xxxxxxxxxx>
Signed-off-by: Andreas Gruenbacher <agruenba@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/gfs2/bmap.c | 1 +
1 file changed, 1 insertion(+)
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -1630,6 +1630,7 @@ out_unlock:
brelse(dibh);
up_write(&ip->i_rw_mutex);
gfs2_trans_end(sdp);
+ buf_in_tr = false;
}
gfs2_glock_dq_uninit(rd_gh);
cond_resched();
